Frame structure



June 17, 1924.

1,498,209 I. R. SMITH FRAME STRUCTURE Original Filed June 13. 1921 jweiv 7 Patented June 17, 1924.

molding flasks.

umen sjra'rizsv ravine a. swimmer WAUWATOSA, Wisconsin.

P TENTOFFICE.

FRAME STRUCTURE.

Application filed June 13, 1921 Serial No. 477,033. Renewed March 22, 1924.

T 0 all whom it may concern a citizen of the United States, residing at Wauwatosa, in the county of Milwaukee and State of WVisconsin, have invented'certain new and useful Improvements in Frame Structures, of which the following is a specification. I a

The present invention relates to frame structures.

More particularly the present invention relates to frame structures which mustbe rigid in construction. The invention is illustrated particularly in connection with An object of thepresent invention is to provide a frame structure which is sturdy in construction and which may be readily assembled and disassembled, being particularly adaptable for use with molding flasks.-

. A further object is to provide a structure relating to molding flasks which may be constructed at a minimum cost and which may be assembled with the exercise of a minimum of discretion on the part of a workman.

Further objects will appear as the do cription proceeds.

Referring to the drawings-- I Figure 1 is a plan view illustrating one embodiment of the present invention.

Figure 2 is an elevational view in section taken along the line 22 of Figurel.

Figure 3 is a sectional detail view taken along the line 3-3 of Figure 1. i

-As stated above, the present invention has been illustrated particularly in connection with molding flasks. The two complementary members of a molding flask are indicated by the numerals 1 and 2. The two members 1 and 2 are very similar in construction. One of said members. indicated by the numeral 1, is provided with a pair of socket members 33, each of which is adapted to receive a pin 4 which is rigidly mounted on the member 2. The pins H in cooperation with the sockets 33 serve to locate the members of the flask relative to one another in a manner which is well understood. With the exception of the details relating to the members 3 and 4c, the construction of the two complementary members 1 and 2 of the flask may be identical.

Each of the flask members comprises a plurality of side pieces 55 which are located to form a substantially closed frame.

The side pieces 5 5' are rigidly connected toof jaws 9, while the jaw member 8 is provided with a pair of jaws 1010. The jaws 99 will lie in parallel relation with the jaws 1010, whereby to grip between them the end portions of side pieces 5 5] The jaws 99 have been illustrated as toothed for the purpose of better gripping the side pieces 5-5. Jaws 1010 may also be toothed if preferred. Jaw members .7 and 8 are drawn toward one another and heldin gripping position by means of bolts 1111. As illustrated the bolts 11-11 lie in a plane which is symmetrically arranged relative to the jaws 9 and 10. That isto say, the bolts 1111 lie in a plane symmetrically placed relative to adjacent -side.pieces.55.

Each of the jaw members 8 may be provided with a socket member 12 for the reof the members 8 is also provided with means for locating the complementary flask members 1 and 2 relative to one another.

These means are indicated by the numeral 34. As-indicated above, the members 4 on one of the flask members may be provided with pins fitting within holes in the members 3 of the complementary flask members.

If preferred, the pins in the member 4 may be mounted by simply driving and riveting same into a hole into a member resembling the member 3. In this case, members 66 for both parts of the flask may be cast from the same patterns. As shown in Figure 2, members 66 may be; symmetrical, side for side, whereby the member 1 of the flask may be used with either side uppermost.

It will be clear that a workman in assembling a flask as embodied in the present invention, will be called upon to exercise only a very small amount of discretion. He will locate the side pieces 55 between the jaw members 7 and 8 and tighten up on the bolts The locating means 34 will be properly placed to insure the correct location of the two members of the flask. The handle members 1-212 provide convenient means for handling the flask.

Certain aspects of the disclosure in this application are not claimed herein but are being claimed in applicants copending application, Serial No. 477,034, filed June 13, 1921.

One embodiment of the present invention has been described in detail. Many modifications will occur to those skilled in the art. It is intended in this patent to cover all such modifications that come within the scope ofthe invention as defined by the ap pended claims.

What I claim as new and desire to secure by' Letters Patent in the United States, is:

-1. In a molding flask, a plurality of side pieces located to form a substantially-closed frame and clamping means for rigidly holding together adjacent end portions of said side pieces, each of said clamping means comprising a pair or" clamping pieces providing jaws for holding end portions of rality of pairs of jaws and means lying substantially in a plane symmetrical with said jaws for drawing said aws toward closi ing position, said holding means being pro vided with handle means and with means for docating complementary flask members relative to each other. I

3. A molding flask comprising a pair of complementary members, each oi said members including a plurality of side pieces with clamping members tor 'frictionally engaging said side pieces to hold same i, dly in the form of a frame, said clamping members being provided with bolt means for holding same in clamping position and being provided with means for locating said complementary members relative to each other and with handle means,

4. Means for holding together the side pieces of a flask, comprising a pair of clamping pieces, providing between them a plurality of pairs of aws and means lying substantially in a plane symmetrical with said jaws for drawing said jaws toward closing position, said holding means being provided with handle receiving sockets.

5. A molding flask comprising a plurality of side pieces with clampingmembers engaging said side pieces to hold same rigidly in the form of a frame, said clamping members being provided with bolt means for holding same in clamping position and being provided with handle receiving sockets. I

Signed at Chicago, Illinois, this 9th day IRVING ii. sMrrri.

of June, 1921. 

